MMC Unlocker

mjag17's picture
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This code lets you erase a previously locked (and thus in-accessible) Multi-Media Card, making it useful again.

Sorry there isn't much documentation, but the comments should be helpful. Used the serial port for all comms, can be made standalone though.

I wrote it to run on the STK500 (but can be used w/any AVR with enough pins), just plugged the card to the pin headers for PortC, and put some cards to make it thicker/hold it in place between the pins.

Update: 20080312
Added some (blurry) pictures and reduced COM port speed